package com.atguigu.myssm.util;

/**
 * liujianlong
 * 2022-01-25 15:48
 */
public class StringUtil {
    //判断字符串是否为空
    public static boolean isNotEmpty(String str) {
        return !isEmpty(str);
    }
    public static boolean isEmpty(String str){
        return str==null||"".equals(str);
    }

}
